Split files issue

Hi all, I am trying to analyze split files in Autopsy. All files end with .### with a total of 318 files. We have tried mounting the files, merging them, and a few other things with no success. Based on our research we shouldn’t have a problem with this analysis. We have also attempted with FTK which indicates there is encryption when there is none. When we load the files, we get no data back. I tried to see if anyone else is having this issues before posting but did not see this same type of thread. Is it possible the files are somehow encrypted or are they possibly corrupted? We don’t believe there is corruption due to the fact none of the files are giving us any data.

If anyone has additional ideas on what we can try to do with these files, please feel free to share. Thanks!